Standard Web client in Chrome on Mac OS, Play All function correctly queues the tracks but after playing first one, won't go further, it just stops.
Edit: it's not always the case, I'll report my findings if it happens again.
Edit: yes, definitely happening, but it's really not predictable nor reproducible... I just had a track which just stopped 5 seconds before the end, but when I played it again it correctly played next track after it